This summer Deepika Padukone has started shooting for her next film titled 'Chhapaak' where she plays the role of an acid attack survivour. With all that heavy makeup and shooting under the sun, one would wonder how Deepika manages to stay calm. According to reports, Deepika has made some tweaks in her diet to save herself from the intense heat. The actress is consuming a traditional Indian ingredient, Sattu, which keeps the body hydrated. On the other hand, Bollywood newbie Sara Ali Khan has time and again opened up about her battle with Polycystic Ovary Syndrome(PCOS) and her extra efforts to shed weight. The actress, who used to weigh 96 kgs, practiced yoga, Kathak and underwent intense workout sessions to lose weight. She took boot camp training which involves a combination of jumping jacks, windmills, squats, push-ups etc. Sara said that she had to strive in her endeavours because she aspired to be an actress.